Zoning › State preemptions › South Carolina

S.C. ADU / Density / Design Review — No State Preemption (explicit non-preemption) (SC)

Tracked preemption from the South Carolina overlay bundle.

Overview

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Effective
2026-05-18
Sunset
—
Authority
state
Scope
state:SC
Other South Carolina preemptions
S.C. Short-Term Rentals — No State Preemption (explicit non-preemption)S.C. Military Installation Compatibility — AICUZ / JLUS CoordinationS.C. §6-29-1145 — Manufactured Housing Zoning Parity RuleS.C. Brownfields / Voluntary Cleanup Program — §44-56-710 et seq.S.C. Local Government Comprehensive Planning Enabling Act of 1994 — Procedural FloorS.C. Scenic Rivers Act of 1989 — Designated Scenic, Recreational, and Natural RiversS.C. Beachfront Management Act — OCRM Baseline / Setback Line OverlayS.C. Tax Increment Financing Law — Municipal Redevelopment Districts

Trigger predicate

When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.

never true

Preempted fields

0 fields on the base district schema are rewritten when the trigger fires.

Citation

Authority source
S.C. General Assembly 2023-2026 sessions; H 3469 (ADU tax exemption, pending — tax incentive, not zoning preemption); HB 3527 (2025 ADU mandate, failed); SB 612 (2026 missing middle, pending opt-in only); S 227 (2026 concurrency, pending)
§ No enacted ADU / density / design-element preemption as of 2026-05-18
https://www.scstatehouse.gov/billsearch.php

Research notes

Tracked as explicit non-preemption. SC has no statewide ADU-by-right mandate (compare NC SL 2023-108), no MBTA-style density preemption (compare MA §3A), no design-element preemption (compare NC §160D-702 / TX HB 2439), no inclusionary-zoning ban (compare TN §6-54-127), no statewide tree-ordinance preemption (compare FL §163.045 / TX HB 1572). 2026-session bills H 3469 (ADU tax exemption), SB 612 (missing middle opt-in), and S 227 (concurrency framework) are PENDING and would not constitute substantive density preemption even if enacted. Re-verify each biennium — most-likely-to-flip categories in 2027-2028 sessions are ADU and STR preemption based on industry advocacy patterns.